North Korea Denies Hack Involvement, Demands Probe

North Korea said U.S. accusations that it was involved in a cyberattack on Sony Pictures were "groundless slander" and demanded a joint investigation with the U.S. into the incident.
An unnamed spokesman of the North's foreign ministry said there would be "grave consequences" if Washington refused to agree to the joint probe and continued to accuse Pyongyang, the official KCNA news agency reported Saturday.

On Friday, President Barack Obama blamed North Korea for the devastating cyberattack, which led to the Hollywood studio cancelling "The Interview", a comedy on the...